Department of Epidemiology, Geisel School of Medicine at Dartmouth College, Lebanon New Hampshire.Department of Pharmacology and Toxicology, Geisel School of Medicine at Dartmouth College, New Hampshire.Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth College, Lebanon New Hampshire.

Department of Epidemiology, Geisel School of Medicine at Dartmouth College, Lebanon New Hampshire.Department of Pharmacology and Toxicology, Geisel School of Medicine at Dartmouth College, New Hampshire.Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth College, Lebanon New Hampshire.

Department of Epidemiology, Geisel School of Medicine at Dartmouth College, Lebanon New Hampshire.Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth College, Lebanon New Hampshire.